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CVE-2017-5453

4.3 · MEDIUM

A mechanism to inject static HTML into the RSS reader preview page due to a failure to escape characters sent as URL parameters for a feed's "TITLE" element.

Published Jun 11, 2018CWE-20EPSS 1.10%

Overview

CVE-2017-5453 is a medium-severity vulnerability. It was published on June 11, 2018 and has a CVSS 3.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A mechanism to inject static HTML into the RSS reader preview page due to a failure to escape characters sent as URL parameters for a feed's "TITLE" element. This vulnerability allows for spoofing but no scripted content can be run. This vulnerability affects Firefox < 53.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/97940Refwww.securitytracker.com/id/1038320Refbugzilla.mozilla.org/show_bug.cgi?id=1321247Refwww.mozilla.org/security/advisories/mfsa2017-10/Refwww.securityfocus.com/bid/97940Refwww.securitytracker.com/id/1038320Refbugzilla.mozilla.org/show_bug.cgi?id=1321247Refwww.mozilla.org/security/advisories/mfsa2017-10/

How CyberStrike helps

Frequently asked questions

What is CVE-2017-5453?

CVE-2017-5453 is a medium-severity vulnerability. It was published on June 11, 2018 and has a CVSS 3.0 base score of 4.3 (MEDIUM).

How severe is CVE-2017-5453?

This vulnerability has a CVSS 3.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-5453?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-5453?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-5453 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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